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A case of MTX-LPD associated with a tumor in the ear canal and facial paralysis Taro Takanami 1 , Hiroaki Masuda 1 , Munetaka Ushio 1 , Yasushi Ota 1 , Mitsuya Suzuki 1 , Naomi Shimizu 2 , Nobuyuki Hiruta 3 1Department of Otolaryngology, Toho University(Sakura) Keyword: 悪性リンパ腫 , R-CHOP , メトトレキサート pp.469-472
Published Date 2024/5/20
DOI https://doi.org/10.11477/mf.1411203711
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 Methotrexate is an anti-tumor agent that is also used for rheumatoid arthritis and can cause methotrexate-associated lymphoproliferative disorders(MTX-LPD).

 We encountered a rare case of MTX-LPD associated with a mass in the external auditory canal.

 The patient was a 74-year-old female with a chief complaint of ear discharge accompanied by facial paralysis. Because of her history of MTX use, a final diagnosis of MTX-LPD was rendered. After 6 courses of R-CHOP chemotherapy, her symptoms immediately resolved. To our knowledge, no similar cases have been reported in the international literature.


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電子版ISSN 1882-1316 印刷版ISSN 0914-3491 医学書院

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